[PATCH 1/4] arm64: dts: ti: k3-j721s2-main: Add mmio-sram node to main_navss

Andrew Davis afd at ti.com
Tue Mar 3 06:04:19 PST 2026


On 3/2/26 12:17 PM, Brandon Brnich wrote:
> The NavigatorSS (NAVSS) address space contains a 64 KiB on-chip SRAM
> region at its base address. Add an mmio-sram node to expose this region
> to consumers via the generic SRAM allocator API.
> 
> Signed-off-by: Brandon Brnich <b-brnich at ti.com>
> ---

Reviewed-by: Andrew Davis <afd at ti.com>

>   arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi | 8 ++++++++
>   1 file changed, 8 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
> index 80c51b11ac9f..7b1ba34ab719 100644
> --- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
> @@ -785,6 +785,14 @@ main_navss: bus at 30000000 {
>   		dma-coherent;
>   		dma-ranges;
>   
> +		main_navss_sram: navss-sram at 30000000 {
> +			compatible = "mmio-sram";
> +			reg = <0x00 0x30000000 0x00 0x10000>;
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +			ranges = <0x0 0x00 0x30000000 0x10000>;
> +		};
> +
>   		main_navss_intr: interrupt-controller at 310e0000 {
>   			compatible = "ti,sci-intr";
>   			reg = <0x00 0x310e0000 0x00 0x4000>;




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